Did you know that many American cars already on the road can run on E85 (a mixture of 85 percent ethanol and 15 percent gasoline)? Fueling up with ethanol can help to reduce dependence on foreign oil. Click here to calculate your savings.
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Inside NASA's astronaut bootcamp and the grueling new training regimen for deep space. Plus, ten young geniuses shaking up science today, one writer's quest to analyze every man-made chemical in her body and more.
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